Samsung 913V - SyncMaster - 19" LCD Monitor Servicehandleiding - Pagina 14

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Samsung 913V - SyncMaster - 19

5 Troubleshooting

Notes: 1. Before troubleshooting, setup the PC's display as below.
• Resolution: 1280 x 768
• H-frequency: 61 kHz
• V-frequency: 75 Hz
2. If no picture appears, make sure the power cord is correctly connected.
3. Check the following circuits.
• No raster appears: Function PBA, Main PBA, I/D PBA
• 5V develop but no screen: Main PBA
• 5V does not develop: I/D PBA
4. If you push and hold the "
automatically returns to the factory preset.

5-1-1 No Power

When Pin 4 of CN600 is 0V
does proper DC 13V, 5V
appear at Pin 1, 2 and 6, 7 of
CN600 separately?
Yes
When Pin 3 of IC602 is DC 5V
does proper DC 3.3V appear at
Pin 4 of IC602?
Yes
When Pin 4 of IC600 is DC 0.3V
does proper DC 3.3V appear at
Pin 5 and 6 of IC600?
Yes
When Pin 2, 3 of IC601 is
DC 3.3V does proper DC 4.3V appear
at Pin 1 of IC601?
Yes
When Pin 2, 3 of IC601 is
DC 4.3V does proper DC 2.5V appear
at Pin 4 of IC601?
* 0V means power on state.
When the monitor work well except DPMS and power switch off,
0V should be applied to number 4 of CN600.
(Enter/Auto)" button for more than 5 seconds, the monitor
Yes
*
No
No
Check IC602 and related
No
Check IC600 and related
No
Check IC601 and related
No
Check IC601 and related
Check Function Ass'y.
Change IP Board.
circuit.
circuit.
circuit.
circuit.
5 Troubleshooting
5-1